Carrier route record

AALAX→DCA

American Airlines · Los Angeles to Washington

Flights: 730
Period: July 2025 to June 2026
Share of route: 50%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with American Airlines.

American on LAX to DCA lands a B, 4 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 730 flights, with a median arrival 9 minutes early.

Set against the rest of the country, American's LAX to DCA record is 4 points better than the US average of 77.6%. That gap is worth roughly 44 fewer late arrivals for every thousand flights.

On time

82.0%

Arrivals under 15 minutes late, of 713 completed flights

Avg delay

66 min

Across delayed arrivals only, not all flights

Cancelled

1.10%

National rate is 1.81%

Whole route

80.1%

Every carrier on LAX to DCA, 1,457 flights

These figures cover 730 flights between July 2025 and June 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Carrier by carrier

American against every carrier on LAX to DCA

American flew 730 of the 1,457 flights on LAX to DCA, most of the route. Its 82.0% on time is 2 points better than the route as a whole, which runs 80.1%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from American at 82.0% to Alaska at 75.5%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on LAX to DCA
Airline	Flights	On time	Avg delay	Cancelled	Grade
American Airlines (this page)	730	82.0%	66 min	1.10%	B
Delta Air Linesthin sample	363	81.0%	100 min	1.93%	B
Alaska Airlinesthin sample	364	75.5%	74 min	0.82%	B+

Departure window

When American runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 14 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am92 flights90.1%
8am–11am273 flights86.6%
11am–2pm365 flights76.6%
2pm–5pm—
5pm–8pm—
8pm–5am—

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 76.6% on time against 90.1% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 11am–2pm window is the busiest, with 365 flights scheduled in it.

Across the year

American on LAX to DCA through the year

Darker means more delays. Figures are on-time percentages.August best, July worst

July is the worst month at 72.4% on time, 19 points below August, the best at 91.7%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 62 flights.

Across the week, Thursday is the strongest day at 91.1% on time and Sunday the weakest at 74.3%. 17 points is a smaller lever than departure hour, but it is free.

Delay causes

Why American runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 8,451 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
45%
Carrier
32%
National Airspace System
23%
Extreme weather
0%

45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 8,451 reported delay minutes here, that single category outweighs weather by 45 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 8,451 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 90.1% on time here.

Cancellations sit at 1.10% against a national 1.81%, which is ordinary. Diversions add another 1.23%.

Connections and stage length

What a delay here costs

7.0% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

At 2,311 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The return leg is a different operation and performs like one: it runs 77.8% on time across 730 flights, 4 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.

One caution: this is a thin sample. 730 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking American on LAX to DCA

Put together: treat all of this as provisional. 730 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 82.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 713 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures